Ms. Gelman was abducted in Buenos Aires in 1976 at age 19 while seven months pregnant. She was later transferred to a clandestine detention center in Uruguay. Her daughter, María Macarena Gelman, was born in captivity and left in a basket at the door of a Uruguayan police officer; the couple adopted her, giving them their name. The child’s grandfather, the Argentine poet Juan Gelman, tracked her down more than 20 years later and she restored her identity.

The court has now ruled that Uruguay must ensure that the amnesty must never again become an obstacle for investigations into the events of the dictatorship.